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Finding the Third Proportional to 16,804 and 18,292

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Solution

The third proportional to 16,804 and 18,292 is: 19,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,804 : 18,292 = 18,292 : x
  2. Step 2: Convert to fraction form
    16,804/18,292 = 18,292/x
  3. Step 3: Cross multiply
    16,804x = 18,292 × 18,292
  4. Step 4: Simplify right side
    16,804x = 334,597,264
  5. Step 5: Solve for x
    x = 334,597,264/16,804
  6. Step 6: Final answer
    x = 19,911.76

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.